bapi应用.ppt

BAPI Development The SAP Business Framework An integrated family ofdistributed products The distributed products are made up of cooperating components Strategic product architecture Integration scenarios example: HR Master Data Distribution Business components example: Human Resources Business object types examples: Employee, Applicant, ... BAPI interfaces example: Employee.ChangeAddress ALE enables cross-componentintegration Business Objects as a Wrapper Layer What Is a BAPI? Business Application Programming Interface How Is a BAPI Implemented in the R/3 System? BAPI Development BAPI Development - Getting Started Steps for Developing a New BAPI BAPI Development Process: Analysis Analysis - Draw Up a Scenario Integration scenario Issues Which requirements are met? What does the business process look like? How will the business process be realized in the IT-system? In other words, describe the scenario Which business object types are involved? Is there already an object model? Which methods BAPIs are required? Analysis - Business Object Types Business object types Issues Object model Independence, uniqueness Generally applicable for use in BAPIs, Workflow, ArchivLink Performance, maintenance, ... Responsibility for object Names and conventions are important BAPI Development Process - Designing BAPIs BAPIs BAPI signature defined at conceptual level Issues Standardized BAPIs Full, complete scenario Complexity of interfaces Performance, maintenance, ... Precise names are important Conventions in the Design Phase Conventions for BAPI methods Specify whether it is an instance method or class method Method name must be in English BAPI has a return parameter Customer enhancement possible ExtensionIn, ExtensionOut Conventions for parameters Parameters and field names must be in English ISO code fields for ISO-relevant fields All quantity fields must also have corresponding quantity unit fields All currency amounts must also have corresponding fields fo